Hypagyrtis unipunctata (Haw.)
Identification Dr. James Adams: Covell, Moths of Eastern North America, Page 357. The hindwing is scalloped. Color is extremely variable sexually, geographically and seasonally. Both sexes will be yellowish-tan to orangish, mottled with white, brown or blackish lines. Look for black discal dots on all wings. The forewing has a pale sub-terminal spot near the outer margin. Colors in spring broods contrast more than in summer brood. The females are usually larger, with more deeply scalloped hindwing. Caterpillar host plants are alder, birch, hickory, oak, pine and willow.